Although the California Department of Food and Agriculture has not given the official â€œall clear,â€� animal health branch chief Dr. Kent Fowler confirmed that the five cases were identified at a single facility and all affected horses have been quarantined.
Movement to and from the facility has been halted except in emergency situations (for which a special permit must be obtained).
The most common transmission, however, is through shared water and feed sources, Fowler
said U.S. data indicates there have been more cases of EHV-1 in the past 10 years than in the 30 prior, but that it is unclear whether this is because there are more outbreaks or because diagnostic tools have improved.Â It was only last year that the CDFA
put neuropathogenic EHV-1 on the mandatory reporting list for labs. â€œEmergency conditions must be reported in the first 24 hours.
Headshot of veterinarian Kent Fowler in a blue and white-striped shirt.
CDFA Animal Health chief Dr. Kent Fowler
recommends common sense vigilance. â€œIf you have any possibility of exposure, we recommend taking the temperature twice a day, and if itâ€™s up above 101.5 notify your private veterinarian.â€� There are nasal swab t and blood tests used to definitively diagnose the disease.